{
  "bip": "172.31.0.1/24",
  "data-root": "/mnt/mmcblk0p4/docker/",
  "log-level": "warn",
  "log-driver": "json-file",
  "log-opts": {
     "max-size": "10m",
     "max-file": "5"
   },
   "registry-mirrors": [
     "https://dockerhub.azk8s.cn"
   ]
}
